Omega Constellation Constellation Co-Axial 31 Stainless Steel / Red Gold / MOP

Reference 123.20.31.20.05.001

About this watch

The Omega Constellation Co-Axial 31 is a stunning luxury watch that combines exquisite design with advanced technology. Its stainless steel and red gold case beautifully fuses style and sophistication, while the white mother-of-pearl dial catches the light in such a way that it seems to change color as you move. The Dauphine hands glide smoothly across the dial, providing both precision and style. At the heart of this watch is the remarkable Omega caliber 8520 movement, featuring the Co-Axial escapement, which reduces friction between moving parts and enhances the watch's precision. This certified chronometer has passed rigorous tests to ensure its accuracy and can be trusted to keep ticking even when you take it off for the weekend. With a water resistance of up to 100 meters, this watch is built for life! It's not just a luxury accessory; it’s a versatile companion that seamlessly transitions from a day at the office to a night out on the town. Whether you're a watch enthusiast or someone looking to make a statement, the Omega Constellation Co-Axial 31 fits the bill.
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Key Features

  • Omega caliber 8520 movement
  • Stainless steel and red gold case
  • White mother-of-pearl dial
  • Co-Axial escapement
  • Certified chronometer
  • Water resistance up to 100 meters

Specifications

Brand
Omega
Family
Constellation
Model
Constellation Co-Axial 31 Stainless Steel / Red Gold / MOP
Reference
123.20.31.20.05.001
Movement
8520
Movement Features
  • Hours, Minutes, Seconds
  • Date
  • Chronometer, Co-Axial Escapement
Case
31mm
Dial Color
White
Crystal
Sapphire
Water Resistance
100

Current Listings

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  • Condition: pre-owned
  • Diameter: 35mm
  • Lug width: 18mm
  • Strap material: red leather
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Mar 30, 2026, 8:10 PM
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A Omega Constellation Double Eagle, in good condition, suitable for everyday use.

  • Condition: Good daily wear
  • Lume quality: nice
  • Case size: 38/39mm
  • Shipping method: Fedex with insurance
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  • Condition: Excellent with honest presentation
  • Movement: Cal. 561 automatic movement
  • Dial: Original sunburst crosshair dial
  • Service: Freshly serviced in March 2026
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  • Condition: great shape with minor scuffing on the bracelet
  • Crystal clarity: clear
  • Bracelet stretch: little to no stretch
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  • Condition: Good with expected light wear to the bracelet and case
  • Case Diameter: 33mm
  • Bezel Material: 18k yellow gold
  • Crystal Type: Sapphire
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  • Condition: 7.5/10
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  • Case condition: slight marks on the dial visible under strong artificial light
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  • Condition: 9/10
  • Case size: 34.5mm
  • Movement caliber: 551
  • Bracelet type: Original Omega bracelet
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  • Condition: 98% pristine, minor hairline marks on lugs and possibly a faint desk diving mark on case or bracelet
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Posted at
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